Patents by Inventor Charles W. Cox

Charles W. Cox has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Copper-steel composite lead wire and use in incandescent filament electric lamps
    Patent number: 5528105
    Abstract: The subject invention relates to a copper-steel composite wire suitable for use as inner lead wires in lamp applications. The subject copper-steel composite wire comprises a steel core having a thick copper cladding on the outside thereof such that the composite lead wire exhibits at least 30% IACS electrical conductivity. The application further relates to the use of the subject composite wire in incandescent lamp applications.
    Type: Grant
    Filed: July 15, 1994
    Date of Patent: June 18, 1996
    Assignee: General Electric Company
    Inventors: Walter K. Brinn, Charles W. Cox, Stephan Rungwerth, Milan R. Vukcevich
  • Automotive inner-bulb assembly
    Patent number: 4470104
    Abstract: An inner-bulb assembly for use in an automotive lamp unit such as a headlamp or foglamp unit comprising an inner-bulb, an electrically nonconductive base and a metallic spring clip. The base can be designed to retrofit an H3 type of base. Additionally the metallic spring clip serves to secure the assembly to the rest of the lamp unit and as an electrical conductor for one of the inner-bulb pin leads.
    Type: Grant
    Filed: December 24, 1981
    Date of Patent: September 4, 1984
    Assignee: General Electric Company
    Inventor: Charles W. Cox
  • Plastic based glass halogen lamp
    Patent number: 4427255
    Abstract: This invention relates to glass halogen lamps and more particularly to a glass halogen lamp having contact blades which are inserted within openings in a plastic base for permanently securing the lamp in referenced position to the base. The base has a generally cylindrical exterior configuration with a mediately disposed rim and a set of forwardly disposed locking ears which, when the base is inserted within a reflector, respectively engage the exterior and interior reflector surfaces to secure the lamp to the reflector.
    Type: Grant
    Filed: November 4, 1981
    Date of Patent: January 24, 1984
    Assignee: General Electric Company
    Inventor: Charles W. Cox
  • Wedge-pin glass halogen lamp with transverse reference feature
    Patent number: 4139794
    Abstract: A glass halogen, miniature incandescent lamp comprises at least two conductive pins for electrical contact and a molded seal area for secure mechanical contact in a socket.
    Type: Grant
    Filed: May 15, 1978
    Date of Patent: February 13, 1979
    Assignee: General Electric Company
    Inventors: Robert N. Malm, Charles W. Cox
  • Ceramic base for glass halogen lamps
    Patent number: 4126810
    Abstract: A ceramic base is added to a glass halogen lamp to improve the electrical performance and ease of use of the lamp.
    Type: Grant
    Filed: November 3, 1977
    Date of Patent: November 21, 1978
    Assignee: General Electric Company
    Inventor: Charles W. Cox